| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 26.01 | 162.79 | 13.28 | 83.14 | 18.18 | 299.77 | -8.94 | 37.46 | 0.2439 | -1152.8 | -460.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 07:59:08 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.61 | 0.00 | 0.82 | 20.08 | 302.89 | -5.83 | 23.02 | 0.2448 | -775.0 | -577.6 | |
| 0.90 | 158.03 | 0.46 | 80.71 | 17.81 | 299.89 | -8.82 | 38.09 | 0.2378 | -1185.6 | -457.2 | |
| 22.95 | -2.00 | 11.72 | -2.00 | 18.18 | 299.77 | -8.94 | 37.47 | 0.2438 | -1339.3 | 999999 | |
| 1.08 | -2.00 | 0.55 | -2.00 | 17.84 | 299.66 | -9.05 | 38.71 | 0.2405 | -1015.6 | 999999 | |
| 0.00 | 1.08 | 0.00 | 0.55 | 20.59 | 299.48 | -9.24 | 32.73 | 0.2792 | -696.0 | -662.0 | |
| 0.00 | 1.08 | 0.00 | 0.55 | 17.47 | 299.62 | -9.10 | 39.88 | 0.2362 | -243.0 | -208.8 | |
| 1.08 | -2.00 | 0.55 | -2.00 | 18.20 | 299.42 | -9.30 | 38.46 | 0.2478 | -948.4 | 999999 | |
| 0.00 | 0.99 | 0.00 | 0.51 | 19.58 | 297.15 | -11.56 | 40.97 | 0.2893 | -851.0 | -693.8 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |